Answer: disregard for other people
Explanation:
That statement is true.
Object permanence is a very important step in a child development. It requires the capability to create a mental representation about that specific object.
This very development make the children understand that their parents do not actually disappear when they're playing a peek-a-boo
The difference between these two can be found in the concequences. Delinquent behavior results in criminal offense for which you can get jail time. On the other hand, unruly means desobedient towards authority and its much fairer than delinquency.
